In my humble opinion, in the walk the difference is only that that the dancer has more time in R, therefore more expressive upper-body and hip-action, also in the speed of transferring body weight. Especially on the two-beat slow of R. I dont see any difference in the foot-speed. However, caution must be taken not to confuse the walk with the half-beat step in CC, as I noted in my prior post. That is a totally different motion non-existent in R.

This is a very interesting topic. Teachers and advanced dancers lets hear your opinions, please.